Nonperturbative models of intermittency in edge turbulence

Johan Anderson, Eun Jin Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A theory of the probability distribution function (PDF) tails of the blob density in plasma edge turbulence is provided. A simplified model of the fast convective radial transport is used. The theoretically predicted PDF tails corroborate earlier measurements of edge transport, further confirming the strongly non-Gaussian feature of edge transport. It is found that increasing the cross-sectional spatial scale length (Lx and Ly) of the blob results in larger transport, whereas increasing the toroidal scale length (Lz) decreases the PDF. The results imply that the PDF decreases for larger blob speed vb.

Original languageEnglish
Article number122303
JournalPhysics of Plasmas
Volume15
Issue number12
DOIs
Publication statusPublished - 4 Dec 2008
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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